subnet.im

AS396955Internet2

United StatesRegistryARIN

As of 26th September 2026, AS396955 (Internet2), a network registered in the United States with ARIN, originates 16 IPv4 prefixes covering 4.4k addresses and 15 IPv6 prefixes. By IPv4 address space that makes it the 16,605th-largest of the 79,480 networks we see originating IPv4, and the 4,666th-largest of 18,421 in the United States. It is seen behind 4 upstream networks, most often AS3356 (Lumen (Level 3)) and AS1299 (Arelion (fka. Telia Carrier)), and in front of 5 downstream networks. 97% of its announcements have a valid RPKI ROA, and none are RPKI-invalid. 68% of its routes reach at least 90% of full-feed peers, and 16 prefixes are also originated by another network.

At a glance

IPv4 prefixes

16

IPv6 prefixes

15

IPv4 addresses

4.4k

IPv6 /64s

17.7M

Upstream graph

The networks AS396955 is seen behind, one and two hops out, drawn from real AS paths.

AS396955Toward the internet core
Upstream graph for AS396955: 12 neighbouring networks observed beyond it across 2 levels. The same networks are listed in the tables below.AS396955Internet2This networkAS1299Arelion (fka. Tel…AS3356Lumen (Level 3)AS11164Internet2 I2PXAS11537Internet2AS8888xTom Pty LtdAS13030Init7 (Switzerlan…AS2914NTT America, Inc.AS3549Lumen (fka. Globa…AS2152CENIC - CalRENAS2497Internet Initiati…AS293ESnetAS2153CENIC

Networks observed one and two hops upstream of AS396955 in real AS paths. A thicker line means more vantage points saw that adjacency, so weight tracks how well attested it is — not how much traffic it carries. Adjacency is an observation; whether it is a transit purchase or a settlement-free peering is an inference, and is labelled as one wherever we show it.

Neighbouring networks

18

adjacent networks

Upstreams
422%
Peers
950%
Downstreams
528%

Networks carrying this one's traffic toward the rest of the internet.

Upstreams of AS396955
NetworkCountryRelationshipPathsVantage pts
AS3356Lumen (Level 3)USPeer1,991145
AS1299Arelion (fka. Telia Carrier)SEPeer1,10585
AS11164Internet2 I2PXUSPeer15134
AS11537Internet2USPeer102

Prefixes

All 31

The largest blocks AS396955 originates, widest first.

Largest prefixes originated by AS396955
PrefixAddressesVisibility
163.253.40.0/2351281/81
64.57.22.0/2425679/81
163.253.16.0/2425664/81
163.253.17.0/2425664/81
163.253.19.0/2425680/81
163.253.23.0/2425664/81
163.253.32.0/2425681/81
163.253.34.0/2425681/81
163.253.44.0/2425681/81
163.253.63.0/2425679/81

Routing health

How AS396955's own announcements validate against RPKI and how far they propagate. The same measures for the whole routing table are on the routing table in numbers.

RPKI origin validation

  • Valid96.8%30
  • Invalid0.0%0
  • No ROA3.2%1

Propagation

  • Globally propagated90% of full-feed peers or more67.7%21
  • Partially propagated40% to 90%32.3%10
  • Seen by few peersUnder 40%0.0%0

Prefix sizes

IPv4 — 16 prefixes

IPv6 — 15 prefixes

  • /4016.8M × /646.7%1
  • /4865.5k × /6493.3%14

Recent changes

Announcements that started or stopped since 27th Aug 2026.

Routing data derived from RouteViews MRT archives, BGPKIT relationship inference and public registry data.